Earthquake (quarry blast) with magnitude of ML 1.0 on date 23-12-2020 and time 12:17:24 (Italy) in region 1 km W Albiano (TN)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: 1 km W Albiano (TN), on

  • 23-12-2020 11:17:24 (UTC)
  • 23-12-2020 12:17:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.14, 11.18 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Albiano TN 1 1514 1514
Giovo TN 3 2513 4027
Lona-Lases TN 3 890 4917
Fornace TN 4 1355 6272
Cembra Lisignago TN 5 2364 8636
Baselga di Pinè TN 5 5031 13667
Lavis TN 5 8915 22582
Faedo TN 6 616 23198
Civezzano TN 6 4002 27200
Nave San Rocco TN 6 1398 28598
Altavalle TN 6 1648 30246
Zambana TN 7 1733 31979
San Michele all'Adige TN 7 3042 35021
Segonzano TN 8 1505 36526
Trento TN 9 117317 153843
Fai della Paganella TN 9 894 154737
Mezzocorona TN 10 5446 160183
Bedollo TN 10 1483 161666
Sant'Orsola Terme TN 10 1098 162764
Pergine Valsugana TN 10 21280 184044
Mezzolombardo TN 10 7067 191111
Frassilongo TN 11 338 191449
Salorno BZ 11 3758 195207
Fierozzo TN 11 469 195676
Roverè della Luna TN 12 1636 197312
Cavedago TN 13 517 197829
Spormaggiore TN 13 1289 199118
Vignola-Falesina TN 13 162 199280
Palù del Fersina TN 13 173 199453
Sover TN 14 838 200291
Andalo TN 14 1076 201367
Cortina sulla strada del vino BZ 14 642 202009
Altopiano della Vigolana TN 15 4942 206951
Ton TN 16 1338 208289
Sporminore TN 16 700 208989
Vallelaghi TN 16 5044 214033
Tenna TN 16 993 215026
Calceranica al Lago TN 16 1387 216413
Magrè sulla strada del vino BZ 16 1279 217692
Molveno TN 16 1134 218826
Garniga Terme TN 17 388 219214
Campodenno TN 17 1500 220714
Valfloriana TN 17 504 221218
Levico Terme TN 17 7915 229133
Denno TN 18 1297 230430
Caldonazzo TN 18 3631 234061
Capriana TN 18 588 234649
Cortaccia sulla strada del vino BZ 19 2225 236874
Contà TN 20 1454 238328
Aldeno TN 20 3059 241387
Novaledo TN 20 1076 242463

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NE of Trento (117317 inhabitants)
42 Km SW of Bolzano (106441 inhabitants)
72 Km NW of Vicenza (112953 inhabitants)
80 Km N of Verona (258765 inhabitants)
98 Km NW of Treviso (83731 inhabitants)
98 Km NW of Padova (210401 inhabitants)
100 Km NE of Brescia (196480 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.0 2020-12-23
11:17:24
46.14 11.18 1 2021-02-26
14:56:17
Bollettino Sismico Italiano INGV 86637901
Reviewed
Rev100
ML 1.0 2020-12-23
11:17:24
46.13 11.19 10 2020-12-23
11:24:33
Sala Sismica INGV-Roma 85648581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-23 11:17:24 ± 0.12
Latitude 46.14 ± 0.01
Longitude 11.18 ± 0.01
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 86637901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1090
Semi-minor axis of confidence ellipse (meter) 660
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 318
Circular confidence region, given by single value of horizontal uncertainty (meter) 1090
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37322
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 86637901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-27 18:21:15

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 85648581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-23 11:24:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TEOL.HHZ. 2020-12-23T11:17:54.24 3.0 undecidable manual S 0 0
SI.KOSI.HHZ. 2020-12-23T11:17:32.57 0.3 undecidable manual P 23 0.3471 91 -0.09 73
ST.VARA.EHZ. 2020-12-23T11:17:32.96 0.3 undecidable manual P 212 0.3732 91 -0.28 70
ST.ZIAN.EHZ. 2020-12-23T11:17:31.44 0.1 undecidable manual P 63 0.2968 91 -0.08 98
SI.LUSI.HHZ. 2020-12-23T11:17:30.37 0.1 undecidable manual P 222 0.2464 91 -0.04 100
ST.DOSS.HHZ. 2020-12-23T11:17:30.56 0.1 undecidable manual P 179 0.2626 91 -0.21 96
ST.GAGG.HHZ. 2020-12-23T11:17:28.88 0.1 undecidable manual P 249 0.1646 92 0.28 97
ST.PANI.EHZ. 2020-12-23T11:17:28.40 0.1 undecidable manual P 131 0.1412 92 0.31 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
ST.PANI.EHE. ML:0.8 6.7739705E-5 0.2592 AML other m 2020-12-23T11:17:31.46
SI.LUSI.HHN. ML:0 8.42E-5 0.18 AML other m 2020-12-23T11:17:31.89
ST.PANI.EHN. ML:0.9 9.52331E-5 1.5008 AML other m 2020-12-23T11:17:32.88
ST.GAGG.HHE. ML:1 8.525E-5 1.1 AML other m 2020-12-23T11:17:32.29
ST.GAGG.HHN. ML:0.8 5.28E-5 1.32 AML other m 2020-12-23T11:17:32.30
ST.GAGG.HNE. ML:0.9 6.965E-5 0.8 AML other m 2020-12-23T11:17:34.41
ST.GAGG.HNN. ML:1.1 0.0001104 1.04 AML other m 2020-12-23T11:17:34.63
ST.DOSS.HHE. ML:0.8 3.345E-5 0.2 AML other m 2020-12-23T11:17:35.60
ST.DOSS.HHN. ML:0.9 4.64E-5 0.42 AML other m 2020-12-23T11:17:36.93
SI.LUSI.HHE. ML:0 5.49E-5 0.54 AML other m 2020-12-23T11:17:37.31
IV.TEOL.HHE. ML:1.8 7.215E-5 0.38 AML other m 2020-12-23T11:18:01.24
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download